Remove custom matrix from PS2AVRGB boards (#7396)

* Remove custom matrix from PS2AVRGB boards

* Add custom backlight.c to SRC for bminiex, for now

* Add missing DIODE_DIRECTIONs

4 files changed, 4 insertions, 137 deletions

diff --git a/keyboards/mt40/config.h b/keyboards/mt40/config.h
index 48f707f71..f5038fb54 100644
--- a/keyboards/mt40/config.h
+++ b/keyboards/mt40/config.h
@@ -32,7 +32,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DESCRIPTION     A Planck clone
 
 /* key matrix size */
-#define MATRIX_ROWS 8
+#define MATRIX_ROWS 7
 #define MATRIX_COLS 15
 
 #define NO_UART 1
@@ -55,12 +55,12 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* #define CB6 0x37 // B7 */
 /* #define CC7 0x62 // C2 */
 
-#define MATRIX_ROW_PINS { B0, B1, B2, B3, B4, B5, B6, B7 }
-#define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C2, C3, C4, C5, C6, C7, D7 }
+#define MATRIX_ROW_PINS { B0, B1, B2, B3, B4, B6, B7 }
+#define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C7, C6, C5, C4, C3, C2, D7 }
 /* #define UNUSED_PINS */
 
 /* COL2ROW, ROW2COL*/
-/* #define DIODE_DIRECTION COL2ROW */
+#define DIODE_DIRECTION COL2ROW
 
 #define BACKLIGHT_PIN D2
 
diff --git a/keyboards/mt40/matrix.c b/keyboards/mt40/matrix.c
deleted file mode 100644
index d75fcc221..000000000
--- a/keyboards/mt40/matrix.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
-Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-#include <avr/io.h>
-#include <util/delay.h>
-
-#include "matrix.h"
-#include "config.h"
-
-#ifndef DEBOUNCE
-#   define DEBOUNCE     5
-#endif
-
-static uint8_t debouncing = DEBOUNCE;
-
-static matrix_row_t matrix[MATRIX_ROWS];
-static matrix_row_t matrix_debouncing[MATRIX_ROWS];
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-
-
-void matrix_init(void) {
-    // all outputs for rows high
-    DDRB = 0xFF;
-    PORTB = 0xFF;
-    // all inputs for columns
-    DDRA = 0x00;
-    DDRC &= ~(0x111111<<2);
-    DDRD &= ~(1<<PIND7);
-    // all columns are pulled-up
-    PORTA = 0xFF;
-    PORTC |= (0b111111<<2);
-    PORTD |= (1<<PIND7);
-
-    // initialize matrix state: all keys off
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        matrix[row] = 0x00;
-        matrix_debouncing[row] = 0x00;
-    }
-    matrix_init_kb();
-}
-
-void matrix_set_row_status(uint8_t row) {
-    DDRB = (1 << row);
-    PORTB = ~(1 << row);
-}
-
-uint8_t bit_reverse(uint8_t x) {
-    x = ((x >> 1) & 0x55) | ((x << 1) & 0xaa);
-    x = ((x >> 2) & 0x33) | ((x << 2) & 0xcc);
-    x = ((x >> 4) & 0x0f) | ((x << 4) & 0xf0);
-    return x;
-}
-
-uint8_t matrix_scan(void) {
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        matrix_set_row_status(row);
-        _delay_us(5);
-
-        matrix_row_t cols = (
-            // cols 0..7, PORTA 0 -> 7
-            (~PINA) & 0xFF
-        ) | (
-            // cols 8..13, PORTC 7 -> 0
-            bit_reverse((~PINC) & 0xFF) << 8
-        ) | (
-            // col 14, PORTD 7
-            ((~PIND) & (1 << PIND7)) << 7
-        );
-
-        if (matrix_debouncing[row] != cols) {
-            matrix_debouncing[row] = cols;
-            debouncing = DEBOUNCE;
-        }
-    }
-
-    if (debouncing) {
-        if (--debouncing) {
-            _delay_ms(1);
-        } else {
-            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-                matrix[i] = matrix_debouncing[i];
-            }
-        }
-    }
-
-    matrix_scan_kb();
-
-    return 1;
-}
-
-inline matrix_row_t matrix_get_row(uint8_t row) {
-    return matrix[row];
-}
-
-void matrix_print(void) {
-}
diff --git a/keyboards/mt40/mt40.h b/keyboards/mt40/mt40.h
index a53957708..3ff9c89d0 100644
--- a/keyboards/mt40/mt40.h
+++ b/keyboards/mt40/mt40.h
@@ -34,7 +34,6 @@
     { K30,   K11,   K12,   K13,   K14,   K15,   KC_NO, KC_NO, KC_NO, KC_NO, K1A,   K1B,   KC_NO, KC_NO, KC_NO }, \
     { K10,   K01,   K02,   K03,   K04,   K05,   KC_NO, KC_NO, KC_NO, KC_NO, K0A,   KC_NO, KC_NO, KC_NO, KC_NO }, \
     { K00,   KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, K0B   }, \
-    { KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, KC_NO }, \
     { KC_NO, KC_NO, K06,   K16,   K26,   K35,   K38,   K3A,   K39,   K3B,   KC_NO, KC_NO, K07,   K17,   K27   }, \
     { KC_NO, KC_NO, K09,   K19,   K29,   KC_NO, K2B,   KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, K08,   K18,   K28   }  \
 }
diff --git a/keyboards/mt40/rules.mk b/keyboards/mt40/rules.mk
index 0cbf90c67..338a83cc7 100644
--- a/keyboards/mt40/rules.mk
+++ b/keyboards/mt40/rules.mk
@@ -29,9 +29,5 @@ TAP_DANCE_ENABLE = no
 
 OPT_DEFS = -DDEBUG_LEVEL=0
 
-# custom matrix setup
-CUSTOM_MATRIX = yes
-SRC = matrix.c
-
 LAYOUTS = planck_mit
 LAYOUTS_HAS_RGB = no